Alright, so as a kid I remember seeing the beginning of a film on TV, and it's been bugging me for more than a decade trying to figure out what it was.
I remember the first scene - it felt like late 70s - early 80s budget VFX - flat lighting, visible matte lines, maybe even still images of models animated.
It started with a dogfight. I remember an x-shaped ship. There was a cockpit or control room shot. Very claustrophobic, darkly lit with the glow off of computer screens being the most lighting.
That's about all I can remember. Had a name evocative of Dark Star I think, but it isn't Dark Star. It's not Star Wars either.